Match stick and plumbing: what they have in common

1. Step 1. Match stick — is part of — Match. A wooden stick.
2. Step 2. Match — evolved from — Fire making. A convenient way to make fire.
3. Step 3. Fire making — is used in — Pottery. The first pottery was fired right in a campfire.
4. Step 4. Pottery — is made of — Clay. Vessels are shaped from clay.
5. Step 5. Clay — is material for — Plumbing. Minoan plumbing used ceramic pipes.

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